what do you answer another inmate when he ask what your in for? im a child molester, im in big trouble.

You are correct, it is not something we would advise that you answer. There is a code in prison that is pervasive regarding inmates and their charges. Most inmates will not ask you about your charges, but there is always one that will. When they do, your answer is simple, "You know we do not discuss our charges and I know better than to ask you about yours. I'm here to do my time and go home." If they keep pushing, just say, "a fraud I'm not proud of and will not discuss". There is one issue that sometimes comes up that you might have to deal with. Some inmates will have someone on the outside look up your case. If they do, you might need to seek some protection - go to your case manager and ask to be placed in protective custody. If you stay in the general population with that information known by others, you might have some issues to deal with. It's the same for people who were confidential informants - they are prison yard targets.